Hair clipper



June 8, 1937.

sfe. BRANCH HAIR CLIPPER Filed May 23, 1936 Patented June 8, 1937 UNITEDSTA'E HAIR CLIPPER Samuel G. Branch, Middletcwn, of one-third to Carl F.Peterson,

Conn.

Conn, assignor Middletown,

Application May 23, 1936, Serial No. 81,423

3 Ciaims.

My invention relates to the class of' devices employed for cutting hair,and an object of my invention, among others, is to provide a device ofthis type that may be held in a manner similar to that for holdingshears in the operation of cutting hair; and a further object of theinvention is to provide a device of this class that may be readilyconstructed and that shall be particularly efficient in its method ofoperation.

One form of a hair clipper embodying my invention and in theconstruction and use of which the objects herein set out, as well asothers, may be attained is illustrated in the accompanying drawing inwhich- Figure 1 is a side view of my improved hair clipper.

Figure 2 is a view in lengthwise central section through the same-Figure 3 is a view in cross section on a plane denoted by the dottedline 3-3 of Figure 2.

Figure 4 is a fragmentary view in lengthwise section through the handleillustrating the methd of securing the stationary blade to the handle.

Figure 5 is an inside view of the detachable handle section.

Figure 6 is a detail view in cross section on a plane denoted by thedotted line 6-5 of Figure 4.

Figure '7 is a detail view in cross section illustrating the connectionfor the coupling plug.

While my invention is not limited in its use for cutting or clippinghair of any particular nature, yet, I have in mind its adaptability forcutting hair on the human head, my invention as embodied in such adevice being shown in the drawing herein. It will be obvious however,that the clippers may be used for shearing wool or other substances inthe nature of hair or wool without departing from the spirit and intentof the invention.

The device as described herein comprises a handle which is preferablyformed in two sections with a blade support secured thereto and a bladereciprocally mounted in said support, means being provided in the handlefor impartr ing reciprocating movement to the blade. The

numeral 1 denotes the main section of the handle including asemi-cylindrical portion 8 comprising a body part and with a Web 9protruding therefrom on one side, this web terminating in a ring or loopID with a finger rest II in a manner common to shear construction. Thebody part 8 comprises substantially half of the handle as a whole and ithas a recess l2 with bridges l3 extending thereacross, said bridgesconstituting a portionof the bearings for a driver to be Jhereinafterdescribed.

The secondary handle section is similar :in form to that just describedand comprises a body part i l with a recess I5, bridges It and a loop orring H. A blade support it is upturned at one edge to form a supportinglip l9 creating one side of a blade groove 20. This blade support istapered from the handle to the point, somewhat to resemble shear bladeswhen closed together. It has a tang which is secured to the main handlesection 1' within an opening into the end thereof. Screws may be usedfor securing the blade support in place if desired, or any othersuitable fastening means may be employed. The front edge of the bladesupport is formed with teeth 22 that may be sharpened to provide cuttingedges.

A blade 23 is located in the groove within the lip 19 for reciprocatingmovement therein, this blade having guide slots 26 through which screws25 extend, said screws also passing through the supporting lip 19. Alubricating groove 28 is also formed in the blade for the purpose ofreceiving a lubricant of a more or less thick character. The front edgeof the blade is provided with teeth 21 which are spaced apartsubstantially the same distance as are the teeth 22 on the stationaryblade section and which may be sharpened to cooperate with said lastmentioned teeth.

As a means for reciprocating the blade 23 I provide a cam 28 which islocated in the end of a driver 29 rotatably mounted in bearings in thebridges l3 and Hi. In the construction as shown herein the cam 28engages in a groove in the edge of the tang 2i at the inner end of thereciprocating blade, and a finger 313 on the tang projects into a camgroove 3| comprising a part of the cam, and as shown in Fig. 2 of thedrawing.

The end of the driver comprising a shaft 32 is suitably formed toreceive a coupling as from a flexible shaft driven by a motor of anysuitable character, as herein shown the shaft having a hole in its endwith a slot opening out of one side of the hole to receive a plug 33with a spline 34 integrally formed thereon, the plug being located atthe end of the flexible shaft and driven thereby, and when inserted inthe socket in the shaft 32 operates to rotate the cam 28 and thereby toimpart reciprocating movement to the blade 23.

The tool as illustrated herein is of particular advantage in cuttinghair on the human head, as it may be held by one hand in the same manneras are a pair of shears and the comb tionary blade secured to 1. hairclippershaped'to resemble a of shears when the blades thereof are closedto}- gether, said clipper comprising a handle, a stablade associatedwith the stationary blade: for

reciprocating action, the stationary blade 'being' vU-shaped in crosssection with side walls and" a bottom' wall inclosing'and retaining themovable blade, the saidbottom wallada'pt'ed to 8.01 commodate thesliding action of the movable blade, cutting teeth on adjacent edges ofthe and of the stationary blade, a

movable blade rotatable grooved cam mounted in the handle, and a tangcarried by the inner end of the movable blade, having a:fingeroperatively extending intothe groove in thecam for effectingreciprocation of the movable blade upon'rotation of V the cam. a t 2. Ahair clipper shaped to resemble a pair of shears when the blades thereofare closed together, said clipper comprisingflarhandle, a stationarybladegsecuredto the handle, a movable blade associated withthestationary bladejf or reciprocating action, the stationary bladebeing U-shaped in cross section with side walls. and a bottom wallinclosing and retaining themovable blade, the said bottomv wall adaptedto accom- "modate the 'slidingaction of the movable blade, cutting teethon adjacent edges. of the movable blade and .of thestationary blade, arotatable grooved'cam mOuntedinthe. handle, and a tang carried by theinner end of the movableblade,

The operation of the i "a reduced neck portion in another bridge piecewthe neck engaging oppositefaces of the bridge the handle, a movablehaving a finger operatively extending into the groove in ther cam foreffecting reciprocation of the mo vable blade upon rotation. of the cam,said handle carrying internal bridge pieces, a drive shaft carried byone end of the cam and journalled in a bearing in a bridgerpiece andwith the shoulders 01' piece for restraining longitudinally shiftingmovements of the cam relative to the handle.-

on the cam journalled 3. A hair clipper shapedto resemble a pair 01shears when the blades thereof are closed together, said clippercomprisinga handle, a stationary blade secured to the handle, a movableblade'associated with the stationary blade for reciprocating' action,the stationary blade being cu-shaped in' cross section with sidewallsand a bottom wall inclosing and retaining the movable blade,thesaid bottom ,wall adapted to accommodate the sliding action of themovable blade, cutting teeth 'on adjacent edges of the movable blade andof the stationary blade, 2.

rotatable grooved cam mounted in the handle, a-nd'a tang jcarried bytheinner end of the movableblade, having a fingeroperatively extending intothe'groove in thecam for eifecting' reciprocation of the movable bladethe cam, the mounting of the movable blade including a pin and slotconnection between, each end of the, movable blade and a side wall ofthe stationary blade with the slots confined between the side walls ofthe stationary blade and said movable blade being longitudinally slottedbetween the pin and slot connections and upon rotation of saidlongitudinal slot adapted to receive a lubri,

cant or the like. SAMUEL G. BRANCH.

